RHS 140x90x11.1 Açotubo · Weight & Dimensions

Açotubo, cold-formed sections · Rectangular Hollow Section

Rectangular Hollow Sections (RHS) are tubular profiles with excellent torsional resistance and aesthetic appeal. Used for columns, trusses, and exposed structural elements.

Also known as: PTR 140x90 (México) · Caño estructural 140x90 (Argentina)

The RHS 140x90x11.1 steel profile weighs 33.7 kg/m (22.66 lb/ft), has a depth of 140 mm (5.51 in), flange width 90 mm (3.54 in). Cross-sectional area: 4,295.867 mm². Moment of inertia Ix = 988.411 cm⁴, Iy = 486.474 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	140 mm	5.51 in
Width (b)	90 mm	3.54 in
Thickness (t)	11.1 mm	0.44 in
Fillet radius (r)	22.2 mm	0.87 in
Weight	33.7 kg/m	22.66 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,295.87 mm²	6.659 in²
Moment of inertia (Ix)	988.41 cm⁴	23.75 in⁴
Moment of inertia (Iy)	486.47 cm⁴	11.69 in⁴
Elastic section modulus (Sx)	141.2 cm³	8.617 in³
Elastic section modulus (Sy)	108.11 cm³	6.597 in³
Plastic section modulus (Zx)	184.24 cm³	11.243 in³
Plastic section modulus (Zy)	134.51 cm³	8.208 in³
Radius of gyration (rx)	4.8 cm	1.888 in
Radius of gyration (ry)	3.37 cm	1.325 in